Preventing DROWN Attack

On March 1st 2016, OpenSSL released patches that disable the SSLv2 protocol by default, as well as removing SSLv2 EXPORT ciphers.

A cross-protocol attack was discovered that could lead to decryption of TLS sessions by using a server supporting SSLv2 and EXPORT cipher suites as a Bleichenbacher RSA padding oracle.
Note that traffic between clients and non-vulnerable servers can be decrypted provided another server supporting SSLv2 and EXPORT ciphers (even with a different protocol such as SMTP, IMAP or POP) shares the RSA keys of the non-vulnerable server.
This vulnerability is known as DROWN.

The vulnerability is referred by CVE as CVE-2016-0800. (

So, please patch your system to prevent this attack if you are not done yet.

Have a good time.
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